Patents by Inventor Hemanth Sampath

Hemanth Sampath has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9730218
    Abstract: Systems and methods for allowing group access to the wireless medium of a wireless network are disclosed. In one aspect, the method includes performing a backoff procedure for each of one or more certain classes. The method may further include receiving an indication that the backoff procedure for at least one of the one or more certain classes is complete. In some aspects, once the backoff procedure for a class is completed, performing one or more transmissions which are transmittable simultaneously with other transmissions in the class. Finally, the method may update the backoff procedures for the class based on the one or more transmissions. In some aspects, the backoff procedures may be updated based on certain fairness conditions.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: August 8, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Hemanth Sampath, Gwendolyn Denise Barriac
  • Patent number: 9729299
    Abstract: Systems, methods, and computer readable storage media communicate with a wireless device within a dense wireless environment. In one aspect, a method includes determining whether a wireless device is subject to interference, adjusting a transmission attribute based on the determining, and transmitting a message to the wireless device based on the adjusted transmission attribute. In some aspects, adjusting a transmission attribute may include selecting one or more of time division multiplexing or frequency division multiplexing when communicating with the wireless device. In some aspects, particular time periods and/or particular frequency bands may be selected for communication with the device depending on whether the device is subject to interference.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 8, 2017
    Assignee: QUALCOMM, Incorporated
    Inventors: Gwendolyn Denise Barriac, Simone Merlin, Rahul Tandra, Sameer Vermani, Yan Zhou, Bin Tian, Hemanth Sampath
  • Publication number: 20170223485
    Abstract: Methods and apparatus for integrating Bluetooth devices into neighbor aware networks are described herein. In some aspects, a method for wireless communication may comprise receiving at least one parameter indicating availability of a service associated with a first wireless protocol from a second wireless device configured to communicate according to the first wireless protocol. The method may further comprise encapsulating the at least one parameter into a service discovery frame associated with a second wireless protocol. The method may further comprise transmitting the service discovery frame to a third wireless device configured to communicate according to the second wireless protocol.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Santosh Paul Abraham, George Cherian, Abhishek Pramod Patil, Hemanth Sampath
  • Publication number: 20170223486
    Abstract: Methods and apparatus for integrating Bluetooth devices into neighbor aware networks are described. In one aspect, a method for wireless communication using a first wireless protocol and a second wireless protocol includes determining, by a first wireless device, a set of parameters comprising at least one of an identifier associated with a cluster of wireless devices configured to communicate according to the second wireless protocol, an indication of a discovery window transmission time associated with the cluster, and a reliability metric associated with the cluster. The method also includes inserting the set of parameters into a frame associated with the first wireless protocol, and transmitting by the first wireless device, the frame associated with the first wireless protocol over a communication channel associated with the first wireless protocol to a second wireless device configured to communicate according to the first wireless protocol.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Inventors: Santosh Paul Abraham, George Cherian, Abhishek Pramod Patil, Hemanth Sampath
  • Publication number: 20170214504
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a first message to at least two stations. The first message indicates a second message to be transmitted to at least two stations after the first message. The method further includes transmitting the second message to the at least two stations. The method further includes receiving a plurality of uplink data from the at least two stations in response to the second message.
    Type: Application
    Filed: April 10, 2017
    Publication date: July 27, 2017
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Publication number: 20170208502
    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for load balancing network traffic in a wireless network. In one aspect, an access point may determine a plurality of client devices that are associated with an overloaded channel of the wireless network. The access point may identify a first client device of the plurality of client devices based, at least in part, on an airtime consumed on the overloaded channel. The access point may determine one or more alternate paths between the access point and the first client device. The access point may forecast airtime to be used by the first client device on channels of the one or more alternate paths, and steer wireless network traffic of the first client device to a first alternate path of the one or more alternate paths based, at least in part, on the forecasted airtime.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 20, 2017
    Inventors: Sai Yiu Duncan Ho, Peerapol Tinnakornsrisuphap, Brian Michael Buesker, Hemanth Sampath
  • Patent number: 9706412
    Abstract: Methods and apparatus for network setup in wide channel WLANs are provided. Techniques for co-existence of 20 MHz and 40 MHz networks (e.g., as defined by IEEE 802.11n) may be extended to 80 MHz and 160 MHz networks. For example, a primary channel of an existing network may be designated as the primary channel of a new network. Further, a primary channel of the existing network may not be used as a secondary channel in the new network. Intolerance operation between networks may include a first network releasing one or more channels in response to an intolerance indication received from a second network. Furthermore, in response to the intolerance indication from the second network, the first network may utilize one or more channels for communicating in the first network using a first set of access parameters. The access parameters may depend on the intolerance indication.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: July 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, Simone Merlin, Hemanth Sampath
  • Patent number: 9705656
    Abstract: Systems, methods, and devices for concurrently allowing station-to-station transmissions and access point-to-station transmissions are described herein. In some aspects, a method comprises transmitting, to an access point, a request for an available channel frequency. The method further comprises receiving a coordination message from the access point. The coordination message may indicate that a first frequency channel is allocated for transmissions between a first device and a second device and that a second frequency channel is allocated for transmissions between a third device and a fourth device. The method further comprises transmitting a first data packet to the fourth device using the second frequency channel concurrently with a transmission of a second data packet between the first device and the second device using the first frequency channel.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: July 11, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Bin Tian, Rahul Tandra, Gwendolyn Denise Barriac, Yan Zhou, Sameer Vermani, Simone Merlin
  • Publication number: 20170195975
    Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Inventors: Hemanth SAMPATH, Didier Johannes Richard VAN NEE, Santosh ABRAHAM, Alok AGGARWAL
  • Patent number: 9699667
    Abstract: A particular method includes transmitting a frame from a station to an access point. The frame includes a beacon sequence number related to a configuration of the access point. The method also includes, in response to transmitting the frame, receiving an update frame from the access point. The update frame indicates at least one change in the configuration of the access point.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: July 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Hemanth Sampath, Maarten Menzo Wentink, Simone Merlin
  • Patent number: 9699086
    Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication includes generating a first wireless message granting permission for a first station to transmit during a transmission opportunity, generating a second wireless message granting permission for a second station to transmit during the transmission opportunity; and transmitting the first wireless message to the first station at least partially concurrently with transmission of the second wireless message to the second station.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: July 4, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
  • Patent number: 9692123
    Abstract: In a particular embodiment, a method of controlling a radiation pattern includes selecting a signal processing characteristic to vary based on a radiation pattern to be emitted by an antenna array of a wireless device, wherein the antenna array includes a plurality of antennas, wherein the signal processing characteristic provides a target resultant radiation pattern, and wherein the signal processing characteristic is applies to less than all elements of the antenna array, and varying the signal processing characteristic across time, frequency, or a combination thereof.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: June 27, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sameer Vermani, Didier Johannes Richard Van Nee, Sanaz Barghi, Hemanth Sampath, Vincent Knowles Jones, IV
  • Patent number: 9686791
    Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 20, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, Avinash Jain, Stephen Shellhammer, Hemanth Sampath
  • Patent number: 9680626
    Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 13, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani, Bin Tian, Yan Zhou, Rahul Tandra
  • Patent number: 9681442
    Abstract: Systems, methods, and devices for wireless communication are described herein. In some aspects, a method includes determining one or more classes of compatible transmissions from one or more wireless devices. The method further includes defining scheduled time slots for each of the one or more classes. The method further includes defining a channel access procedure associated with each of the scheduled time slots. The method further includes accessing a wireless medium during an associated scheduled time slot according to the channel access procedure by one or more of the wireless devices.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 13, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Simone Merlin, Hemanth Sampath, Gwendolyn Denise Barriac, Amin Jafarian, Maarten Menzo Wentink, Yan Zhou
  • Publication number: 20170163385
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for multi user bar protocols and frames. According to certain aspects, an apparatus is provided for wireless communications. The apparatus generally includes a processing system configured to determine that a plurality of devices have a first capability and generate a multi-user (MU) packet that solicits an immediate response from a plurality of the devices, wherein the immediate response comprises an acknowledgment (ACK) or block ACK (BA) and an interface configured to output the MU packet for transmission.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Inventors: Simone MERLIN, Gwendolyn Denise BARRIAC, Hemanth SAMPATH
  • Patent number: 9668283
    Abstract: Certain aspects of the present disclosure generally apply to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STAs). By using the Downlink Spatial Division Multiple Access (DL-SDMA) technique, the AP may send data at the same time towards multiple STAs. Certain aspects of the present disclosure provide techniques and apparatuses for detecting that a multiuser multiple-input multiple-output (MU-MIMO) transmission has suffered a collision and to adapting a contention window (CW) size for a backoff counter applied to a subsequent MU-MIMO transmission.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 30, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, Simone Merlin, Vincent Knowles Jones, IV, Maarten Menzo Wentink, Hemanth Sampath
  • Patent number: 9667465
    Abstract: Systems, methods, and devices for wireless communication. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a wireless signal comprising a packet. At least a portion of the wireless signal is configured to be received over a bandwidth lower than or equal to 1.25 MHz. The packet is formed from at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising thirty-two tones. The thirty-two tones correspond to frequency subcarriers within the bandwidth. The thirty-two tones of the at least one OFDM symbol are allocated as: twenty-four data tones, two pilot tones, five guard tones, and one direct current (DC) tone. The apparatus includes a processor configured to evaluate the wireless signal. The processor includes a transform module configured to convert the at least one OFDM symbol into a frequency domain signal using a thirty-two point mode.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: May 30, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Mohammad Hossein Taghavi Nasrabadi, Sameer Vermani, Lin Yang, Hemanth Sampath
  • Patent number: 9661445
    Abstract: Methods and apparatus for integrating Bluetooth devices into neighbor aware networks are described herein. In some aspects, a method for wireless communication may comprise receiving at least one parameter indicating availability of a service associated with a first wireless protocol from a first wireless device configured to communicate according to the first wireless protocol. The method may further comprise encapsulating the at least one parameter into a service discovery frame associated with a second wireless protocol. The method may further comprise transmitting the service discovery frame to a second wireless device configured to communicate according to the second wireless protocol. The first wireless network comprises a Bluetooth protocol and the second wireless network comprises a WiFi protocol.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 23, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Santosh Paul Abraham, George Cherian, Abhishek Pramod Patil, Hemanth Sampath
  • Publication number: 20170135069
    Abstract: Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing groups of stations (STAs) receiving simultaneous transmissions in a multiuser multiple-input multiple-output (MU-MIMO) scheme. One example method generally includes; for a first apparatus in a number of groups of apparatuses, allocating a first spatial stream position for each of at least one first group in the number of the groups; and transmitting a first unicast message to the first apparatus, wherein the first unicast message comprises an indication of the allocated spatial stream position for each of the at least one first group and, for each group in the number of the groups, an indication of a membership status, in the group, of the first apparatus.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Inventors: Santosh Paul ABRAHAM, Sameer VERMANI, Maarten Menzo WENTINK, Rahul TANDRA, Hemanth SAMPATH